With my breaker on, I have power to my light switch when it is off. When the switch is on no power to switch. New light bulb does not work in either position.

With my breaker on, I have power to my light switch when it is off. When the switch is on no power to switch. New light bulb does not work in either position.

Explain this more clearly, and best to start it as a new post

With my breaker on, I have power to my light switch when it is off.

^^^this makes sense and is normal, but how do you know this?

When the switch is on no power to switch.

^^^ does this mean power goes off when you turn the switch on (not likely) or did you mean "when the switch is on no power to the light" ?

New light bulb does not work in either position.

^^^does this mean "new bulb does not work with switch on or off" ?

I can think of several causes already but it really depends on what you meant